Most of the fragrances I tried, that can be described this way, are too complex and behave unpredictable on the skin. I'd like something really pure and mild, but without any sweetness at all. Appreciate any help because I'm a very busy mummy and there are too many fragrances in the world.

I assume you are thinking of dept store to start? Try Dolce & Gabbana Light Blue, Chanel- 31 Rue Cambon, Estée Lauder- Azureé But now I see Niche? You can go to LuckyScent and search 'fragrances' and try anything that you think sounds good. Wow, so many. Hermes- Une Jardin Sur Le Nil maybe to start.

Your description also makes me think about fresh green, examples of which were already mentioned (I could toss in more, like Jacomo Silences, or my favorite,sadly discontinued, paco Rabanne Metal).

But pure and mild recalls the style of perfumer Ellena, who is now at Hermes. Hence the Jardins, which are not niche, or the Hermessences, the more expensive line, for instance Iris Ukiyoe or the (fleeting) Brin de Reglisse.

Perhaps also the unisex Blu Mediterraneo niche EDC line by Acqua di Parma might be suitable, except their too blatantly citrus-dominated scents like Arancia di Capri or Bergamotto di Sardegna. All the other Blu Mediterraneo scents fit most requirements- unisex, therefore easily wearable by each gender, a certain dryness, astringency, even acidity, without becoming pungent or acrid, even a certain non-sweet, moderate bitterness in the more gourmand offerings like Mandorlo di Sicilia, niche quality, fresh enough and also cooling, rather than warm and heavy, to be worn during summer.

The one fragrance that came to mind with these adjectives is Chanel 28 La Pausa. Cool, dry, non-sweet (almost slightly sour?) iris, soft and mild, no citrus at all to my nose. Another fairly non-sweet iris is Hermes Hiris.

I also thought of Atelier Colognes Sous le Toit de Paris, which is a soft refreshing violet cologne that brings out the bitter green aspects of violet rather than sweetness. But it's a bit hard to find.

Vetiver is good suggestion teardrop. Maybe try Grey Vetiver. Another one is Bel Respiro grassy green perfect summer/spring scent and Mito. If you are willing to have bit of a hunt round the now discontinued Envy by Gucci is cool, metallic green floral.